A combination lock has a 1.0-cm-diamter know that is part of the dial you turn to unlock the
lock. To turn that knob, you grip it between your thumb and forefinger with a force of 0.60 N as
you twist your wrist. Suppose the coeffcient of static friction between the knob and your fingers
is only 0.12 because some oil accidentally got onto the knob. What is the most torque that you
can exert on the knob without having it slip between your fingers?